Friction-Held Electrical Cover with Removable Annular Rings
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Solution Overview
Problem
Existing solutions for protecting recessed light fixtures during painting and finishing projects are either laborious, prone to gaps, or incompatible with modern electrical components due to design flaws, leading to material intrusion and safety hazards.
Innovation Solution
A friction-held electrical cover with concentric annular fittings and negative draft surfaces that pressure-fit over recessed light fixtures, eliminating the need for insertion prongs and accommodating manufacturing tolerances, while being reusable and easy to install/remove.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If tape is used to cover electrical components, then it provides some protection, but it is laborious, time-consuming, and leaves gaps that allow material intrusion
Solution Approach 1:
The cover is divided into a main body and multiple removable annular rings that can be separated and reconfigured. This segmentation allows the cover to adapt to different electrical component sizes and shapes while maintaining a continuous seal, eliminating gaps that would allow finish materials to penetrate.
Solution Approach 2:
The cover transitions from a static, one-size-fits-all design to a dynamic, adaptable structure. The removable annular rings can be added or removed based on the specific electrical component being protected, allowing the cover to dynamically adjust its inner diameter and configuration to fit various fixture sizes while maintaining full coverage without gaps.
2Reliability
If insertion prongs are used to secure paint shields, then the shields can be held in place, but they are incompatible with modern outlets that have safety tabs
Solution Approach 1:
The invention extracts and removes the problematic insertion prongs from the design. Instead of using prongs that must be inserted into electrical boxes (which conflicts with modern safety tabs), the solution uses a friction-based pressure-fit system where the cover and removable rings are pressed onto the electrical component housing, providing secure attachment without requiring insertion into the electrical box.
Solution Approach 2:
The removable annular rings serve as intermediaries between the cover and the electrical component. These rings provide the friction contact surface that secures the assembly through pressure-fit, eliminating the need for direct insertion into the electrical box while maintaining reliable attachment. The rings act as a mediator that adapts to different component configurations.
3Ease of manufacture
If flat, flimsy paint shields are used, then they are easy to manufacture, but they crack, gap, and buckle under pressure allowing material intrusion
Solution Approach 1:
The cover is segmented into a main body and multiple removable annular rings. This segmentation allows each component to be thin-walled and easy to manufacture, yet when assembled together, they form a structurally sound, gap-free protective barrier that can withstand painting pressure without cracking or buckling.
Solution Approach 2:
The main cover body and removable annular rings are combined through friction-fit attachment to create a unified protective structure. This merging of multiple simple components creates a stronger, more rigid assembly that resists cracking and buckling under painting pressure while maintaining ease of manufacture for each individual component.
4Strength
If thicker, more rigid shields are used to prevent cracking, then structural integrity improves, but they fail to accommodate variations in manufacturing tolerances between electrical components
Solution Approach 1:
The removable annular rings provide a dynamic adjustment mechanism that allows the cover assembly to adapt to variations in electrical component dimensions. By adding or removing rings, the inner diameter can be adjusted to accommodate manufacturing tolerances, while the overall structure maintains sufficient rigidity to prevent cracking under painting pressure.
Solution Approach 2:
The invention changes the parameter of inner diameter through the addition or removal of annular rings. This allows the protective cover to be customized for different electrical component sizes within a family, accommodating manufacturing tolerances without requiring completely different cover designs, while maintaining structural integrity through the friction-fit assembly.
5Object-affected harmful factors
If a secure, gap-free seal is provided to prevent material intrusion, then protection effectiveness improves, but the cover should be easy to quickly install and remove
Solution Approach 1:
The cover is segmented into a main body and removable rings that can be quickly attached and detached by hand. This segmentation allows for rapid installation and removal without tools, while the friction-fit design ensures a secure, gap-free seal when assembled, preventing finish materials from entering the electrical component.
Solution Approach 2:
The friction-fit design allows the cover and rings to self-secure when pressed together, eliminating the need for fasteners, adhesives, or complex assembly procedures. The user simply presses the components together to create a secure seal, and can equally easily pull them apart for removal, achieving both secure protection and rapid installation/removal.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents finish materials from entering electrical components, reduces labor, and ensures safety by providing a secure, gap-free seal that adapts to various fixture sizes, enhancing reusability and safety.
Implementation Method 1
The frictionally-held finish material covers utilize specifically shaped features on the surfaces, such as negative draft, that contact the electrical components to increase the hold on the electrical device
Data Source
AI summary
The electrical cover comprises a friction-held electrical cover for a recessed light fixture. Embodiments of the electrical cover described herein provide flexible finish material covers that guard recessed “can” light fixtures from paint, spackling, and other foreign materials. The frictionally-held finish material covers utilize specifically shaped features on the surfaces, such as negative draft, that contact the electrical components to increase the hold on the electrical device. Some of the shaped features of the frictionally-held covers also help minimize stress in the cover. Features are also molded into the parts to assist and strengthen the cover once installed, and thus protect against the intrusion of finish material behind the cover.